Optical aperture synthesis with electronically connected telescopes
نویسندگان
چکیده
منابع مشابه
Optical aperture synthesis with electronically connected telescopes
Highest resolution imaging in astronomy is achieved by interferometry, connecting telescopes over increasingly longer distances and at successively shorter wavelengths. Here, we present the first diffraction-limited images in visual light, produced by an array of independent optical telescopes, connected electronically only, with no optical links between them. With an array of small telescopes,...
متن کاملOptical Aperture Synthesis
Optical aperture synthesis (OAS) from an aircraft platform is considered. Critical technical risks for implementation of OAS are examined for active and passive systems. The improved range for target recognition and identification makes OAS an attractive high-risk, high-payoff proposition.
متن کاملOptical SETI with Air Cerenkov Telescopes
We propose using large Air Cerenkov Telescopes (ACT’s) to search for optical, pulsed signals from extra-terrestrial intelligence. Such dishes collect tens of photons from a nanosecond-scale pulse of isotropic equivalent power of tens of solar luminosities at a distance of 100 pc. The field of view for giant ACT’s can be on the order of ten square degrees, and they will be able to monitor 10 to ...
متن کاملOptical SETI with Imaging Cherenkov Telescopes
The idea of searching for optical signals from extraterrestrial civilizations has become increasingly popular over the last five years, with dedicated projects at a number of observatories. The method relies on the detection of a brief (∼ few ns), intense light pulse with fast photon detectors. Ground-based gamma-ray telescopes such as the Whipple 10m, providing a large mirror area and equipped...
متن کاملOptimizing orbital debris monitoring with optical telescopes
Continued growth in the orbital debris population has renewed concerns over the long-term use of space. Debris poses an increasing risk to manned space missions and operational satellites; however, the majority of debris large enough to cause catastrophic damage is not being tracked and maintained in a catalog. Passive optical systems hold great promise to provide a cost-effective means to moni...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2015
ISSN: 2041-1723
DOI: 10.1038/ncomms7852